WIT Press


Simulation Of Sound Structure Interactions By The Coupled Fem/bem



Price

Free (open access)

Paper DOI

10.2495/CMEM-V6-N6-1067-1078

Volume

Volume 6 (2018), Issue 6

Pages

11

Page Range

1067 - 1078

Author(s)

ZAI-YOU YAN

Abstract

Sound transmission through thin elastic shell with different fluids on the inside and outside is simulated using the in-house program based on the coupled finite element and boundary element method. The structure dynamics is simulated using the finite element method and the acoustic fields are simulated using the boundary element method. To avoid the non-uniqueness problem existing in the exterior acoustic boundary element method, Burton and Miller formulation is employed. The hyper-singular boundary integral is dealt with a regularization relationship. To validate this approach, a case with analytical solutions is simulated.

Keywords

boundary element method, Burton and Miller’s formulation, finite element method, sound structure interaction